Buffalo Forums

Products => Storage => Topic started by: timbrooksbank on June 14, 2018, 07:47:06 AM

Title: Backup
Post by: timbrooksbank on June 14, 2018, 07:47:06 AM
Has anyone got any idea how long backup to external HDD via USB should take?  I'm backing up a 2TB NAS with just under 500GB of data onto a 1TB USB3.0 HDD, the backup has been running for over 24 hours now, this seems a long time. 

How long should it take?

Thanks
Tim
Title: Re: Backup
Post by: oxygen8 on June 14, 2018, 03:22:54 PM
my test with LS-QVL

64GB USB Fat32


writing to usb 21MB/s


# sync ; time sh -c "dd if=/dev/zero of=/mnt/usbdisk2/testfile bs=100k count=10k  && sync"
10240+0 records in
10240+0 records out

real    0m46.738s
user    0m0.030s
sys     0m4.950s






copying from usb to Raid5 with 23MB/s

sync ; time sh -c "cp /mnt/usbdisk2/testfile /mnt/array1/share  && sync"

real    0m42.608s
user    0m0.170s
sys     0m4.970s





1. which nas do you use?
2. which filesystem do you use on the usb device


Browser ID: smf (is_webkit)
Templates: 1: Printpage (default).
Sub templates: 4: init, print_above, main, print_below.
Language files: 1: index+Modifications.english (default).
Style sheets: 0: .
Hooks called: 50 (show)
Files included: 27 - 1055KB. (show)
Memory used: 734KB.
Tokens: post-login.
Queries used: 10.

[Show Queries]